A quick way to see which Squamish sectors are likely dry and in the sun right now.
Squamish Crag Conditions combines each sector's compass-facing wall direction with live sun position and recent weather to give a rough sun/shade status and a 0–100 “dry score” heuristic for climbing sectors around Squamish, BC. It's meant to help you decide where to head, not to replace your own judgment at the crag.
Crag and sector locations come from OpenBeta's public climbing database. Weather — rainfall, current conditions, and the short-range forecast — comes from Environment and Climate Change Canada's public MSC GeoMet API, read from the Squamish Airport station. The embedded maps use OpenTopoMap tiles, © OpenStreetMap contributors.
The dry score starts at 100 and combines three things: how much rain fell in the last 24–72 hours, how long ago it stopped, and how much direct sun a sector has had since then. It's a heuristic, not a measurement — sun exposure and drainage both vary a lot within a single sector, and the score can't see that.
Aspect data is mostly unverified. Only sectors with a manually curated wall direction get a real sun/shade calculation — everything else is marked unverified rather than guessed, and its dry score renders with a ~prefix since it's missing the sun-recovery part of the formula.
Weather is one regional reading, not per-crag. Environment Canada's station coverage in the Squamish valley is sparse relative to individual crags, so a sector in a rain shadow or a local microclimate won't be reflected.
The forecast is Environment Canada's own, shown separately from observed conditions— it's a forecast, not a measurement, and is never blended into the dry score or the sun/shade badges.
Use all of it at your own discretion, and trust what you see when you get there over what this site says.